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Alaska Science Assessment · Grade 10

Alaska Grade 10 Science Assessment Practice Test

Build Grade 10 Alaska science assessment readiness with five focused 10-question practice sets covering chemistry, biology, Earth systems, climate, engineering, data, and Alaska applications.

Alaska Grade 10 Science Assessment practice sets

This Alaska Grade 10 Science Assessment Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets support Grade 10 review across chemistry, energy, physics, biology, genetics, ecology, Earth systems, climate, engineering, data, and Alaska-related phenomena.

Skills covered

  • Balanced equations, energy changes, pH, force, momentum, circuits, waves, particle models, and nuclear changes
  • DNA replication, protein synthesis, meiosis, mutations, cellular respiration, enzymes, carrying capacity, succession, genetics, and homeostasis
  • Carbon cycle, climate evidence, subduction, climate models, ocean currents, albedo, aquifers, stars, and eclipses
  • Experimental design, random assignment, models, outliers, uncertainty, optimization, correlation, graphs, and peer review
  • Permafrost, salmon ecosystems, volcano monitoring, glacier mass balance, tidal energy, water quality, sea ice, watersheds, and field data

How to use this page

Complete one 10-question set at a time. Identify the evidence, connect it to the scientific model, and check whether the conclusion is supported by the data. Review each explanation after responding.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice. It does not replace current Alaska Department of Education and Early Development guidance, official assessment materials, accommodations, or testing schedules.

For the broader Alaska assessment hub, visit Alaska State Assessments.

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Alaska Grade 10 Science Assessment Practice Questions

A 10-question Alaska Grade 10 Science Assessment practice set on biology, genetics, and ecology, with answers and explanations.

Read each scenario carefully, identify the evidence, choose one answer, and review the explanation after responding.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is the main purpose of DNA replication before cell division?

Please select an answer first.

Correct answer: A

The correct answer is To make a copy of genetic information for each new cell.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: DNA replication copies genetic information so each daughter cell can receive a complete set of instructions.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

DNA replication copies genetic information so each daughter cell can receive a complete set of instructions.

2. QuestionMultiple choice

What role does messenger RNA play in protein synthesis?

Please select an answer first.

Correct answer: B

The correct answer is It carries genetic instructions from DNA to a ribosome.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Messenger RNA carries a sequence copied from DNA to a ribosome, where the sequence helps guide protein assembly.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Messenger RNA carries a sequence copied from DNA to a ribosome, where the sequence helps guide protein assembly.

3. QuestionMultiple choice

What is the result of meiosis in a sexually reproducing organism?

Please select an answer first.

Correct answer: C

The correct answer is Cells with half the usual number of chromosomes.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Meiosis produces haploid reproductive cells so fertilization can restore the species chromosome number.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Meiosis produces haploid reproductive cells so fertilization can restore the species chromosome number.

4. QuestionMultiple choice

Which statement about mutations is scientifically accurate?

Please select an answer first.

Correct answer: D

The correct answer is A mutation can be harmful, helpful, or have little effect depending on the context.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: The effect of a mutation depends on the gene, environment, and how the change influences organism function.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

The effect of a mutation depends on the gene, environment, and how the change influences organism function.

5. QuestionMultiple choice

What are the main products of cellular respiration?

Please select an answer first.

Correct answer: A

The correct answer is Carbon dioxide, water, and usable cellular energy.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Cells break down glucose using oxygen and produce carbon dioxide, water, and usable energy.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Cells break down glucose using oxygen and produce carbon dioxide, water, and usable energy.

6. QuestionMultiple choice

How do enzymes affect chemical reactions in cells?

Please select an answer first.

Correct answer: B

The correct answer is They lower activation energy and speed suitable reactions.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Enzymes act as biological catalysts that lower the energy needed to start specific reactions.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Enzymes act as biological catalysts that lower the energy needed to start specific reactions.

7. QuestionMultiple choice

What can limit the carrying capacity of a population?

Please select an answer first.

Correct answer: C

The correct answer is Available food, water, space, and other resources.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Carrying capacity is limited by resources and environmental conditions that affect survival and reproduction.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Carrying capacity is limited by resources and environmental conditions that affect survival and reproduction.

8. QuestionMultiple choice

What is ecological succession?

Please select an answer first.

Correct answer: D

The correct answer is The gradual change in an ecosystem community over time.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Succession describes changes in the organisms and structure of a community after disturbance or over long periods.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Succession describes changes in the organisms and structure of a community after disturbance or over long periods.

9. QuestionMultiple choice

Two heterozygous parents have a recessive allele for a trait. What is the probability that an offspring receives two recessive alleles?

Please select an answer first.

Correct answer: A

The correct answer is 25 percent.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: A cross of two heterozygous parents gives a one in four probability of receiving two recessive alleles.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

A cross of two heterozygous parents gives a one in four probability of receiving two recessive alleles.

10. QuestionMultiple choice

How does insulin help maintain blood glucose homeostasis?

Please select an answer first.

Correct answer: B

The correct answer is It helps cells take in glucose and lowers blood glucose after it rises.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Insulin signals cells to take up glucose and supports storage, helping return blood glucose toward a stable range.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Insulin signals cells to take up glucose and supports storage, helping return blood glucose toward a stable range.

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Frequently asked questions about Alaska Grade 10 Science Assessment Practice Test

Which science skills are covered?

The page covers chemistry, energy, physics, biology, genetics, ecology, Earth systems, climate, engineering, data, and Alaska-related science applications.

How many questions are included?

There are five practice sets with 10 questions each, for 50 questions in total. Each set can be completed separately.

Are these official Alaska assessment questions?

No. These are original supplemental practice questions. Check the latest Alaska Department of Education and Early Development information for official assessment dates, materials, accommodations, and policies.